These entries are queried from radb.net using whois, you can try my project getting these.
:AS395327 route: 209.177.73.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS395327 remarks: Proxy add for customer Bay Federal Credit Union mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20180102 source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source